Fuel valve

Claim 1

IN A FILLER VALVE ASSEMBLY FOR THE FUEL RESERVOIR OF A LIQUEFIED GAS FUEL DEVICE THAT IS SUBJECTED TO USE IN AN ENVIRONMENT THAT IS SUBJECTED TO TEMPERATURE VARIANTS AND HAVING MEANS DEFINING A FUEL PASSAGEWAY OPENING THROUGH A VALVE SEAT INTO SAID RESERVOIR TOGETHER WITH A VALVE MEMBER MOVABLE TOWARD AND AWAY FROM SAID VALVE SEAT, SAID ASSEMBLY INCLUDING FLUID PRESSURE RESPONSIVE MEANS FOR URGING SAID VALVE MEMBER TOWARD SAID VALVE SEAT WITH A FORCE PROPORTIONAL TO THE PRESSURE OF FUEL IN SAID RESERVOIR, THE IMPROVEMENT COMPRISING: THERMAL RESPONSIVE MEANS IN SAID RESERVOIR FOR URGING SAID VALVE MEMBER TOWARD SAID SEAT WITH A FORCE INVERSELY PROPORTIONAL TO THE TEMPERATURE OF SAID RESERVOIR DECREASES IN RESPONSE TO A DECREASE FUEL IN SAID RESERVOIR DECREASES IN RESPONSE TO A DECREASE IN ENVIRONMENT TEMPERATURE, THE FORCE URGING SAID VALVE MEMBER TOWARD SAID VALVE SEAT APPLIED BY SAID THERMAL RESPONSIVE MEANS WILL INCREASE TO INSURE MAINTENANCE OF SAID VALVE MEMBER IN A SEALING RELATION WITH SAID VALVE SEAT.